BMS Main X
Strings controller
Modular BMS for 24-1000V batteries
Main X controls up to 32 batteries connected in parallel, each of them is managed by the BMS Main 2.1 or BMS Mini. It limits the charging and discharging currents of the whole battery and dynamically turns on and off the parallel batteries to keep them balanced.
- 3 solid-state relays for contactors
- 4 discrete inputs
- 4 discrete outputs
- Calculation of the allowable charging and discharging currents
- Active balancing
- CAN, RS-485, USB
- Wi-Fi (over an extension module)
- SD-card logging
- IoT ready
Documentation
Connection manualDownload
ElectricDeviceMonitorCompatible controllers: BMS Mini, BMS Mini S, BMS Main 2.1
Compatible wireless modules: BMS Wi-Fi
| Parameter | Value |
|---|---|
| Supply voltage, V | 18 ÷ 36 |
| Number of battery modules | 1 ÷ 32 |
| Number of temperature sensors | 2 |
| Type of temperature sensors | 100kOhm NTC thermistor |
| Number of solid-state relays | 3 |
| Number of discrete inputs | 4 |
| Number of discrete outputs | 4 |
| Number of CAN transceivers | 2 |
| CAN bus speed, kbps | 125, 250 (by default), 500, 1000 |
| Number of RS-485 transceivers | 1 |
| RS-485 baud rate, bps | 600, 1200, 2400, 4800, 9600 (by default), 19200, 38400, 57600, 115200 |
| USB 2.0 speed, Mbps | 12 |
| Current consumption @24 V, mA (max) | 100 |
| Dimensions (length × width × height), mm | 105 × 115 × 18 |
| Weight, g | 88 ± 5 |
| Operating temperature range, °С | -40 ÷ 75 |
| The degree of protection from external influences | IP00 |
BMS Main X can be configured using the ElectricDeviceMonitor over USB, CAN or a Wi-Fi network (in this case, the BMS Wi-Fi module must be installed).